What is the Greatest Common Factor of 7761 and 7765?

Greatest common factor (GCF) of 7761 and 7765 is 1.

GCF(7761,7765) = 1

We will now calculate the prime factors of 7761 and 7765, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7761 and 7765.

How to find the GCF of 7761 and 7765?

We will first find the prime factorization of 7761 and 7765. After we will calculate the factors of 7761 and 7765 and find the biggest common factor number .

Step-1: Prime Factorization of 7761

Prime factors of 7761 are 3, 13, 199. Prime factorization of 7761 in exponential form is:

7761 = 3¹ × 13¹ × 199¹

Step-2: Prime Factorization of 7765

Prime factors of 7765 are 5, 1553. Prime factorization of 7765 in exponential form is:

7765 = 5¹ × 1553¹

Step-3: Factors of 7761

List of positive integer factors of 7761 that divides 7761 without a remainder.

1, 3, 13, 39, 199, 597, 2587

Step-4: Factors of 7765

List of positive integer factors of 7765 that divides 7761 without a remainder.

1, 5, 1553

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7761 and 7765. The biggest common factor number is the GCF number.
So the greatest common factor 7761 and 7765 is 1.

Also check out the Least Common Multiple of 7761 and 7765